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Example toolchain and target to utilize tarfs
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| # Create executable with built in tarfs | ||
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| # In theory could just set up an executable with the extra steps to create the tarred object | ||
| # Setting up to easily run from prep, might work from install but would need to sort out directories | ||
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| set(TARFS_DEV_DIR ${MISSION_BINARY_DIR}${CMAKE_INSTALL_PREFIX}/tarfs_dev) | ||
| set(DEV_DIR ${MISSION_BINARY_DIR}${CMAKE_INSTALL_PREFIX}/devboard) | ||
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| file(MAKE_DIRECTORY ${TARFS_DEV_DIR}) | ||
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| # Create the nonvol tar file | ||
| execute_process( | ||
| COMMAND tar cf ${TARFS_DEV_DIR}/tarfile nonvol | ||
| WORKING_DIRECTORY ${DEV_DIR}) | ||
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| # Create the tar file object | ||
| execute_process( | ||
| COMMAND ${CMAKE_LINKER} -r --noinhibit-exe -o tarfile.o -b binary tarfile | ||
| WORKING_DIRECTORY ${TARFS_DEV_DIR}) | ||
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| # Force symbol inclusion as needed for modules | ||
| set(INCLUDE_SYMBOLS "-u strncat -u fgetc -u fputc -u fprintf -u fwrite") | ||
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| # Convert since execute command needs list not string with spaces | ||
| string(REPLACE " " ";" TARFS_FLAGS_LIST ${RTEMS_SYS_SPECS_FLAGS} " " ${RTEMS_BSP_C_FLAGS} " " ${INCLUDE_SYMBOLS}) | ||
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| file(GLOB devboard_exe "${MISSION_BINARY_DIR}${CMAKE_INSTALL_PREFIX}/devboard/*.exe") | ||
| foreach(executable ${devboard_exe}) | ||
| message("Processing executable: ${executable}") | ||
| get_filename_component(BASE_NAME ${executable} NAME_WE) | ||
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| #### LINKS | ||
| #### Does not work to replace -Wl,--export-dynamic with -rdynamic | ||
| #### Does need -lrtemscpu | ||
| # set(TARFS_PRELINK ${CMAKE_C_COMPILER} -B/opt/rcc-1.3.1-gcc/sparc-gaisler-rtems5/sparc-rtems5/leon3/lib -qbsp=leon3 -qrtems -mcpu=leon3 -fno-common -u Init -o ${BASE_NAME}.prelink -Wl,--export-dynamic -Wl,--whole-archive ${executable} tarfile.o -Wl,--no-whole-archive -lrtemscpu) | ||
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| #### BEST SO FAR | ||
| # set(TARFS_PRELINK ${CMAKE_C_COMPILER} ${TARFS_FLAGS_LIST} -u Init -o ${BASE_NAME}.prelink -Wl,--export-dynamic -Wl,--whole-archive ${executable} tarfile.o -Wl,--no-whole-archive -lrtemscpu) | ||
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| # rtemscpu adds ~8MB of debug info, need to strip even if cFS release build | ||
| # -Wl,--export-dynamic doesn't seem to do anything (same exact size either way), needs 2 step link | ||
| # -Wl,--whole-archive and -Wl,--no-whole-archive have no impact either | ||
| # -u Init has no impact | ||
| # TODO investigate adding: -ffunction-sections -fdata-sections -Wl,--gc-sections | ||
| set(TARFS_LINK ${CMAKE_C_COMPILER} ${TARFS_FLAGS_LIST} ${executable} tarfile.o -lrtemscpu) | ||
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| #### LINKS | ||
| #### First shot at rcc style prelink | ||
| # set(TARFS_PRELINK ${CMAKE_C_COMPILER} -mcpu=leon3 -ffunction-sections -fdata-sections -Wl,--gc-sections -B/opt/rcc-1.3.1-gcc/sparc-gaisler-rtems5/leon3/lib -qrtems -specs bsp_specs -o rki.elf.pre ${executable} tarfile.o --start-group -lrtemsbsp -lrtemscpu -latomic -lc -lm -lgcc --end-group) | ||
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| #### LINKS | ||
| # set(TARFS_PRELINK ${CMAKE_C_COMPILER} -mcpu=leon3 -ffunction-sections -fdata-sections -Wl,--gc-sections -B/opt/rcc-1.3.1-gcc/sparc-gaisler-rtems5/leon3/lib -qrtems -o ${BASE_NAME}.prelink ${executable} tarfile.o -lrtemsbsp -lrtemscpu -latomic -lc -lm -lgcc) | ||
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| #### BROKEN - Note this fails since it includes crt0.c, and can't find _start ?!? | ||
| # set(TARFS_PRELINK ${CMAKE_C_COMPILER} -mcpu=leon3 -ffunction-sections -fdata-sections -Wl,--gc-sections ${RTEMS_SYS_SPECS_FLAGS} -o ${BASE_NAME}.prelink ${executable} tarfile.o -latomic -lc -lm -lgcc) | ||
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| message("") | ||
| message("Prelink execution:") | ||
| execute_process( | ||
| COMMAND ${TARFS_LINK} -o ${BASE_NAME}.prelink | ||
| WORKING_DIRECTORY ${TARFS_DEV_DIR} | ||
| COMMAND_ECHO STDOUT | ||
| OUTPUT_VARIABLE TARFS_PRELINK_OUT | ||
| ERROR_VARIABLE TARFS_PRELINK_ERR) | ||
| message("Output:\n${TARFS_PRELINK_OUT}Error:\n${TARFS_PRELINK_ERR}") | ||
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| message("Get dl symbols") | ||
| execute_process( | ||
| COMMAND ${RTEMS_TOOLS_PREFIX}/bin/rtems-syms -v -e -c ${RTEMS_BSP_C_FLAGS} -C ${CMAKE_C_COMPILER} -o ${BASE_NAME}-dl-sym.o ${BASE_NAME}.prelink | ||
| WORKING_DIRECTORY ${TARFS_DEV_DIR} | ||
| COMMAND_ECHO STDOUT | ||
| OUTPUT_VARIABLE TARFS_PRELINK_OUT | ||
| ERROR_VARIABLE TARFS_PRELINK_ERR) | ||
| message("Output:\n${TARFS_PRELINK_OUT}Error:\n${TARFS_PRELINK_ERR}") | ||
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| message("Final link:") | ||
| execute_process( | ||
| COMMAND ${TARFS_LINK} ${BASE_NAME}-dl-sym.o -o ${BASE_NAME}.elf | ||
| WORKING_DIRECTORY ${TARFS_DEV_DIR} | ||
| COMMAND_ECHO STDOUT | ||
| OUTPUT_VARIABLE TARFS_PRELINK_OUT | ||
| ERROR_VARIABLE TARFS_PRELINK_ERR) | ||
| message("Output:\n${TARFS_PRELINK_OUT}Error:\n${TARFS_PRELINK_ERR}") | ||
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| message("Strip binary:") | ||
| execute_process( | ||
| COMMAND ${CMAKE_OBJCOPY} -O binary --strip-all ${BASE_NAME}.elf ${BASE_NAME}.bin | ||
| WORKING_DIRECTORY ${TARFS_DEV_DIR} | ||
| COMMAND_ECHO STDOUT | ||
| OUTPUT_VARIABLE TARFS_PRELINK_OUT | ||
| ERROR_VARIABLE TARFS_PRELINK_ERR) | ||
| message("Output:\n${TARFS_PRELINK_OUT}Error:\n${TARFS_PRELINK_ERR}") | ||
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| message("Strip elf:") | ||
| execute_process( | ||
| COMMAND ${CMAKE_OBJCOPY} --strip-all ${BASE_NAME}.elf ${BASE_NAME}-strip.elf | ||
| WORKING_DIRECTORY ${TARFS_DEV_DIR} | ||
| COMMAND_ECHO STDOUT | ||
| OUTPUT_VARIABLE TARFS_PRELINK_OUT | ||
| ERROR_VARIABLE TARFS_PRELINK_ERR) | ||
| message("Output:\n${TARFS_PRELINK_OUT}Error:\n${TARFS_PRELINK_ERR}") | ||
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| message("Report sizes:") | ||
| execute_process( | ||
| COMMAND ${CMAKE_SIZE} ${BASE_NAME}.elf | ||
| WORKING_DIRECTORY ${TARFS_DEV_DIR} | ||
| COMMAND_ECHO STDOUT | ||
| OUTPUT_VARIABLE TARFS_PRELINK_OUT | ||
| ERROR_VARIABLE TARFS_PRELINK_ERR) | ||
| message("Output:\n${TARFS_PRELINK_OUT}Error:\n${TARFS_PRELINK_ERR}") | ||
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| endforeach() |
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| # This example toolchain file describes the cross compiler to use for | ||
| # the target architecture indicated in the configuration file. | ||
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| # In this sample application, the cross toolchain is configured to | ||
| # use a compiler for the RTEMS operating system targeting the "pc686" BSP | ||
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| # Note that to use this, the "RTEMS" platform module may need to be added | ||
| # to the system-wide CMake installation as a default CMake does not yet | ||
| # recognize RTEMS as a system name. An example of this is distributed with | ||
| # the pc-rtems PSP. | ||
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| # Basic cross system configuration | ||
| set(CMAKE_SYSTEM_NAME RTEMS) | ||
| set(CMAKE_SYSTEM_PROCESSOR sparc) | ||
| set(CMAKE_SYSTEM_VERSION 5) | ||
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| # The BSP that will be used for this build | ||
| set(RTEMS_BSP "leon3") | ||
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| # these settings are specific to cFE/OSAL and determines which | ||
| # abstraction layers are built when using this toolchain | ||
| SET(CFE_SYSTEM_PSPNAME pc-rtems) | ||
| SET(OSAL_SYSTEM_BSPTYPE generic-rtems) | ||
| SET(OSAL_SYSTEM_OSTYPE rtems) | ||
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| # This is for version specific RTEMS ifdefs needed by the OSAL and PSP | ||
| ADD_DEFINITIONS(-DOS_RTEMS_5) | ||
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| # RTEMS_DYNAMIC_LOAD definition: | ||
| # - Set to FALSE for platforms that create a RTEMS executable and link it | ||
| # to the cFE core. | ||
| # - Set to TRUE for platforms that expect the cFE core to to be dynamically | ||
| # loaded into an existing runtime image. | ||
| # This is tied to the OSAL-BSP and PSP implementation so generally cannot | ||
| # be switched on a specific OSAL/PSP platform without modifications. | ||
| set(RTEMS_DYNAMIC_LOAD TRUE) | ||
| set(RTEMS_INCLUDE_TARFS TRUE) | ||
| set(RTEMS_NO_CMDLINE TRUE) | ||
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| # Default to no shell (flight like and batch testing) but allow override from make line | ||
| # Example: make TARGET=devboard RTEMS_NO_SHELL=FALSE install | ||
| if (NOT DEFINED ENV{RTEMS_NO_SHELL}) | ||
| set(RTEMS_NO_SHELL TRUE) | ||
| else () | ||
| set(RTEMS_NO_SHELL $ENV{RTEMS_NO_SHELL}) | ||
| endif () | ||
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| # TODO Only remaining dependency is for network setup, switch to osal network config and remove | ||
| if (RTEMS_INCLUDE_TARFS) | ||
| ADD_DEFINITIONS(-DRTEMS_INCLUDE_TARFS) | ||
| endif () | ||
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| set(RTEMS_BSP_C_FLAGS "-mcpu=leon3 -fno-common") | ||
| set(RTEMS_BSP_CXX_FLAGS ${RTEMS_BSP_C_FLAGS}) | ||
| set(RTEMS_BSP_SPECS_FLAGS "-qbsp=leon3") | ||
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| # Exception handling is very iffy. These two options disable eh_frame creation. | ||
| set(CMAKE_C_COMPILE_OPTIONS_PIC -fno-exceptions -fno-asynchronous-unwind-tables) | ||
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| # The TOOLS and BSP are allowed to be installed in different locations. | ||
| # If the README was followed they will both be installed under $HOME | ||
| # By default it is assumed the BSP is installed to the same directory as the tools | ||
| SET(RTEMS_TOOLS_PREFIX "/opt/rcc-1.3.1-gcc" CACHE PATH | ||
| "RTEMS tools install directory") | ||
| SET(RTEMS_BSP_PREFIX "/opt/rcc-1.3.1-gcc/sparc-gaisler-rtems${CMAKE_SYSTEM_VERSION}" CACHE PATH | ||
| "RTEMS BSP install directory") | ||
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| #+---------------------------------------------------------------------------+ | ||
| #| Common RTEMS toolchain statements | ||
| #+---------------------------------------------------------------------------+ | ||
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| # specify the cross compiler - adjust accord to compiler installation | ||
| # This uses the compiler-wrapper toolchain that buildroot produces | ||
| SET(SDKHOSTBINDIR "${RTEMS_TOOLS_PREFIX}/bin") | ||
| set(TARGETPREFIX "${CMAKE_SYSTEM_PROCESSOR}-gaisler-rtems${CMAKE_SYSTEM_VERSION}-") | ||
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| SET(CMAKE_C_COMPILER "${RTEMS_TOOLS_PREFIX}/bin/${TARGETPREFIX}gcc") | ||
| SET(CMAKE_CXX_COMPILER "${RTEMS_TOOLS_PREFIX}/bin/${TARGETPREFIX}g++") | ||
| SET(CMAKE_LINKER "${RTEMS_TOOLS_PREFIX}/bin/${TARGETPREFIX}ld") | ||
| SET(CMAKE_ASM_COMPILER "${RTEMS_TOOLS_PREFIX}/bin/${TARGETPREFIX}as") | ||
| SET(CMAKE_STRIP "${RTEMS_TOOLS_PREFIX}/bin/${TARGETPREFIX}strip") | ||
| SET(CMAKE_NM "${RTEMS_TOOLS_PREFIX}/bin/${TARGETPREFIX}nm") | ||
| SET(CMAKE_AR "${RTEMS_TOOLS_PREFIX}/bin/${TARGETPREFIX}ar") | ||
| SET(CMAKE_OBJDUMP "${RTEMS_TOOLS_PREFIX}/bin/${TARGETPREFIX}objdump") | ||
| SET(CMAKE_OBJCOPY "${RTEMS_TOOLS_PREFIX}/bin/${TARGETPREFIX}objcopy") | ||
| SET(CMAKE_SIZE "${RTEMS_TOOLS_PREFIX}/bin/${TARGETPREFIX}size") | ||
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| # search for programs in the build host directories | ||
| SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) | ||
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| # for libraries and headers in the target directories | ||
| SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) | ||
| SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) | ||
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| SET(CMAKE_PREFIX_PATH /) |